docs(docs/third-party-commitizen.md): Add cz-path info

[Tatsh]

Description

I created a new Commitizen plugin called cz-path to make path prefix commit message style easier. Example: ui/clock: fix dial when staged files are all in src/ui/clock (src is by default removed).

Checklist

• I have read the contributing guidelines

Documentation Changes

• Run poetry doc locally to ensure the documentation pages renders correctly
• Check and fix any broken links (internal or external) in the documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.96%. Comparing base (120d514) to head (642d9b6).
Report is 752 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1559      +/-   ##
==========================================
+ Coverage   97.33%   97.96%   +0.62%     
==========================================
  Files          42       58      +16     
  Lines        2104     2703     +599     
==========================================
+ Hits         2048     2648     +600     
+ Misses         56       55       -1     

Flag	Coverage Δ
unittests	97.96% <ø> (+0.62%)	⬆️

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